Adime is a library for constructing Allegro GUI
dialogs in a way similar to scanf(), using a
format string. Other features include a
(customizable) 3d look and feel, 3d versions of
some of Allegro's GUI procs, complete help in many
formats (HTML, txt, chm, texinfo, man, devhelp,
and RTF), and four example programs. Adime can
currently be compiled on Linux, Windows/MinGW32,
Windows/Borland C++, Windows/MSVC, DOS/DJGPP,
DOS/Watcom, Apple MacOS X, and QNX.

Annchienta is a 2D isometric game engine for RPG
games, but it can be used for other games as well.
Games available for it are mostly set in a
fantasy world, combining an epic and tragic quest
with fun and challenging gameplay.

Anon Proxy Server is an anonymous proxy server. It
supports HTTP, HTTPS, and SOCKS. It can be used as
a normal proxy or as a P2P anonymous proxy. It
offers Web-based drag and drop access
configuration. It works with IE, Firefox, and
other browsers.

AntTweakBar is a small and easy-to-use C/C++ library that allows programmers to quickly add a light and intuitive GUI into OpenGL or DirectX based graphic programs to interactively tweak them. Program variables can be linked to a graphical control that allows users to modify them. Programmers are not required to design the graphical interface by providing coordinates or by using a visual UI editor. Controls are automatically organized following an optional given hierarchy.

Artisan System is a PHP framework aimed at build
Web sites and e-commerce Web software very quickly
and efficiently. It supports most of the features
expected in a PHP framework, along with a
feature-set with e-commerce classes. The
e-commerce classes will support credit card
processing, other payment methods, shipping
calculators and estimators, product management,
customer processing, and order creation and
management. Artisan System has a very fast but
structured development roadmap.

BallroomDJ is a ballroom music player. It is designed to let the computer choose the music and to be able to play music the entire evening without intervention. It features flexible playlists, music queue management, requests, seeking in songs, speed with pitch control, and an optional audio file organizer. Playlists can have automatic selections based on your choice of dances and how often those dances should play, stops after some number of songs has been played, stops at a particular time, allowing of songs with certain keywords, sequences, and manual selection. Mix all of these in any order and modify them at any time.

The C++ Portable Types Library (PTypes) is a simple alternative to the STL that includes multithreading and networking. It defines dynamic strings, character sets, variants, lists and other basic data types along with threads, synchronization primitives and IP sockets. It is portable across modern Unix and Windows systems and includes a sample HTTP daemon showing the full power of the library.

The CFD General Notation System (CGNS) provides a
general, portable, and extensible standard for the
storage and retrieval of computational fluid
dynamics (CFD) analysis data. CGNS is designed to
facilitate the exchange of data between sites and
applications, and to help stabilize the archiving
of aerodynamic data.

CUT is a unit-testing framework for C, C++, and
Objective-C. Unlike other unit testing tools, CUT
doesn't strive to be an SUnit clone. It automates
a lot of the drudge work often encountered when
using other unit testing packages for the C family
of programming languages. CUT may also be used to
unit-test assembly language software in some
circumstances.

CFL (Compressed File Library) is meant for the save-files used by games, and other sorts of data files. Its features include pluggable class factories, easy CFL file creation at runtime, and the ability to have multiple separate CFL objects in memory at the same time. The package also includes a CFL testing tool to make it easier to port the library and to create additional plug-in compressors, preprocessors, and ciphers. It also includes a makecfl utility, which makes it easy to create ini files.